Home / 1,210,929.46-1,670,996.34-720,872.98

Finding the Fourth Proportional to 1,210,929.46, 1,670,996.34 and 720,872.98

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Solution

The fourth proportional to 1,210,929.46, 1,670,996.34 and 720,872.98 is: 994,753.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,929.46 : 1,670,996.34 = 720,872.98 : x
  2. Step 2: Convert to fraction form
    1,210,929.46/1,670,996.34 = 720,872.98/x
  3. Step 3: Cross multiply
    1,210,929.46x = 1,670,996.34 × 720,872.98
  4. Step 4: Simplify right side
    1,210,929.46x = 1,204,576,111,184.89
  5. Step 5: Solve for x
    x = 1,204,576,111,184.89/1,210,929.46
  6. Step 6: Final answer
    x = 994,753.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.